You aredesigning a two-tier web application in Oracle Cloud Infrastructure (OCI). Your clients want to access the web servers from anywhere, but want to prevent access to the database servers from the Internet. Which is the recommended way to design the networkarchitecture?
A. Create public subnets for web servers and private subnets for database servers in your virtual cloud network (VCN), and associate separate internet gateways for each subnet
B. Create public subnets for web servers and associate adynamic routing gateway with that subnet, and a private subnet for database servers with no association to dynamic gateway
C. Create public subnets for web servers and private subnets for database servers in your VCN, and associate separate security listsand route tables for each subnet
D. Create a single public subnet for your web servers and database servers, and associate only your web servers to internet gateway